diff options
Diffstat (limited to 'tests/sendfile.c')
| -rw-r--r-- | tests/sendfile.c | 74 |
1 files changed, 38 insertions, 36 deletions
diff --git a/tests/sendfile.c b/tests/sendfile.c index 9253c102..b86565b8 100644 --- a/tests/sendfile.c +++ b/tests/sendfile.c @@ -36,15 +36,13 @@ # include <fcntl.h> # include <stdio.h> # include <stdint.h> +# include <stdlib.h> # include <unistd.h> # include <sys/socket.h> -# include <sys/stat.h> int -main(int ac, const char **av) +main(void) { - assert(ac == 1); - (void) close(0); if (open("/dev/zero", O_RDONLY) != 0) perror_msg_and_skip("open: %s", "/dev/zero"); @@ -53,58 +51,62 @@ main(int ac, const char **av) if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv)) perror_msg_and_skip("socketpair"); - int reg_in = open(av[0], O_RDONLY); - if (reg_in < 0) - perror_msg_and_fail("open: %s", av[0]); - - struct stat stb; - assert(fstat(reg_in, &stb) == 0); - const size_t blen = stb.st_size / 3; - const size_t alen = stb.st_size - blen; - assert(S_ISREG(stb.st_mode) && blen > 0); - - const size_t page_len = get_page_size(); - assert(syscall(__NR_sendfile, 0, 1, NULL, page_len) == -1); + const unsigned int page_size = get_page_size(); + assert(syscall(__NR_sendfile, 0, 1, NULL, page_size) == -1); if (EBADF != errno) perror_msg_and_skip("sendfile"); - printf("sendfile(0, 1, NULL, %lu) = -1 EBADF (%m)\n", - (unsigned long) page_len); + printf("sendfile(0, 1, NULL, %u) = -1 EBADF (%m)\n", page_size); + + unsigned int file_size = 0; + socklen_t optlen = sizeof(file_size); + if (getsockopt(sv[1], SOL_SOCKET, SO_SNDBUF, &file_size, &optlen)) + perror_msg_and_fail("getsockopt"); + if (file_size < 1024) + error_msg_and_skip("SO_SNDBUF too small: %u", file_size); + + file_size /= 4; + if (file_size / 16 > page_size) + file_size = page_size * 16; + const unsigned int blen = file_size / 3; + const unsigned int alen = file_size - blen; + + static const char fname[] = "sendfile-tmpfile"; + int reg_in = open(fname, O_RDWR | O_CREAT | O_TRUNC, 0600); + if (reg_in < 0) + perror_msg_and_fail("open: %s", fname); + if (unlink(fname)) + perror_msg_and_fail("unlink: %s", fname); + if (ftruncate(reg_in, file_size)) + perror_msg_and_fail("ftruncate: %s", fname); TAIL_ALLOC_OBJECT_VAR_PTR(uint32_t, p_off); void *p = p_off + 1; *p_off = 0; - assert(syscall(__NR_sendfile, 0, 1, p, page_len) == -1); - printf("sendfile(0, 1, %#lx, %lu) = -1 EFAULT (%m)\n", - (unsigned long) p, (unsigned long) page_len); + assert(syscall(__NR_sendfile, 0, 1, p, page_size) == -1); + printf("sendfile(0, 1, %p, %u) = -1 EFAULT (%m)\n", p, page_size); assert(syscall(__NR_sendfile, sv[1], reg_in, NULL, alen) == (long) alen); - printf("sendfile(%d, %d, NULL, %lu) = %lu\n", - sv[1], reg_in, (unsigned long) alen, - (unsigned long) alen); + printf("sendfile(%d, %d, NULL, %u) = %u\n", + sv[1], reg_in, alen, alen); p = p_off; if (syscall(__NR_sendfile, sv[1], reg_in, p_off, alen) != (long) alen) { - printf("sendfile(%d, %d, %#lx, %lu) = -1 EFAULT (%m)\n", - sv[1], reg_in, (unsigned long) p_off, - (unsigned long) alen); + printf("sendfile(%d, %d, %#lx, %u) = -1 EFAULT (%m)\n", + sv[1], reg_in, (unsigned long) p_off, alen); --p_off; *p_off = 0; assert(syscall(__NR_sendfile, sv[1], reg_in, p_off, alen) == (long) alen); } - printf("sendfile(%d, %d, [0] => [%lu], %lu) = %lu\n", - sv[1], reg_in, (unsigned long) alen, - (unsigned long) alen, (unsigned long) alen); + printf("sendfile(%d, %d, [0] => [%u], %u) = %u\n", + sv[1], reg_in, alen, alen, alen); - assert(syscall(__NR_sendfile, sv[1], reg_in, p_off, stb.st_size + 1) + assert(syscall(__NR_sendfile, sv[1], reg_in, p_off, file_size + 1) == (long) blen); - printf("sendfile(%d, %d, [%lu] => [%lu], %lu) = %lu\n", - sv[1], reg_in, (unsigned long) alen, - (unsigned long) stb.st_size, - (unsigned long) stb.st_size + 1, - (unsigned long) blen); + printf("sendfile(%d, %d, [%u] => [%u], %u) = %u\n", + sv[1], reg_in, alen, file_size, file_size + 1, blen); if (p_off != p) { uint64_t *p_off64 = (uint64_t *) p_off; |